723055161 has 4 divisors (see below), whose sum is σ = 964073552. Its totient is φ = 482036772.

The previous prime is 723055141. The next prime is 723055181. The reversal of 723055161 is 161550327.

723055161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (723055141) and next prime (723055181).

It is not a de Polignac number, because 723055161 - 2⁹ = 723054649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723055111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120509191 + ... + 120509196.

It is an arithmetic number, because the mean of its divisors is an integer number (241018388).

Almost surely, 2^723055161 is an apocalyptic number.

It is an amenable number.

723055161 is a deficient number, since it is larger than the sum of its proper divisors (241018391).

723055161 is a wasteful number, since it uses less digits than its factorization.

723055161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241018390.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 723055161 is about 26889.6850297656. The cubic root of 723055161 is about 897.5468838516.

The spelling of 723055161 in words is "seven hundred twenty-three million, fifty-five thousand, one hundred sixty-one".